OTC 7L 6s

Omnitetrachordal MODMOS scale
7L+6s
13 tones (5+3+5)

Tetracot MODMOS. Best tuned at high values of L/s.

P = 5.1745609664
Q = 10.4523018119 (4/3 = 3L+1.5s)

L = 92.31 to 171.43 cents (147.07 cents @ P, 158.44 cents @ Q)
s = 0.00 to 92.31 cents (28.42 cents @ P, 15.16 cents @ Q)

9/8 = L+2s (171.43 to 276.92 cents)
4/3 = 3L+2s (461.54 to 514.29 cents)
MOS generator = L+s (171.4 to 184.6 cents)

notable EDOs: 20, 27, 34, 41

sLsLsLsLsLsLL (MOS, not OTC)
 || || ||    
ssLLLssLssLLL (OTC MODMOS) - gc 3,3,3; 4o

symmetric mode: sLLLssLssLLLs

all modes:

	ssLLL ssL ssLLL
	sLLLs sLs sLLLs
	LLLss Lss LLLss
	LLssL ssL LLssL
Lss LssLL LssLL
ssL ssLLL ssLLL
sLs sLLLs sLLLs
Lss LLLss LLLss		LssLL LssLL Lss
ssL LLssL LLssL		ssLLL ssLLL ssL
		sLLLs sLLLs sLs
		LLLss LLLss Lss
		LLssL LLssL ssL
	LssLL Lss LssLL

See also

• Omnitetrachordality
• Gallery of omnitetrachordal scales